Born in the Northern section of São Paulo, Éder Militão represented the youth teams at São Paulo Futebol Clube throughout his childhood. Quickly developing, the defender made his club debut aged 18 in an Under-20 tournament, before his professional debut followed the next year.
Militão went on to make 35 appearances in the Campeonato Brasileiro Série A – Brazil’s highest domestic league – initially playing in central defence. His versatility meant he was utilised at right-back towards the end of the 2017 season, then becoming the first choice for the start of the following campaign.
He wouldn’t see out the 2018 Série A campaign, as various scouts from clubs across Europe were vying for his signature. In August 2018, Militão moved to Portuguese champions FC Porto for £6m, agreeing a five-year deal. The Brazilian defender immediately settled into his new surroundings, assisting the first of three goals in a comfortable debut victory over Moreirense.